sunghoon was your best friend. You develop feelings for him since you guys were young, but he never notice about it. Well, right now he's 23 and you're 21. He has a girlfriend, and your relationship with him became much worse because of his girlfriend

"Uh, sorry. I have to pick up my girlfriend real quick. Maybe next time."

he says on the call and hangs up. You feel so heartbroken and hurt. He chose his girlfriend over you, his best friend. If he's happy, then you're happy too, right..?